Sphere-specific drawbacks must be chosen when a practitioner first gains the associated sphere, and grant the practitioner an extra combat talent in the prerequisite sphere. Drawbacks may be removed in place of gaining a new talent through your class progression or by taking the Extra Combat Talent feat.
Wiki Note: If a Base Sphere grants an additional talent (such as via a package selection or drawback) the additional talents do not count as talents spent for abilities that count the number of talents spent in a sphere. (This most often applies to gaining skill points or improving unarmed damage.)
Utility Starts
The [utility start] tag is described in Spheres of Guile. It is only possible to take advantage of a combat sphere as a [utility] talent if your game includes a way to gain combat talents restricted to those with the [utility] tag, such as using one of the variants in Chapter 1.
Piecemeal Utility Starts: If you have a progression or optional replacement that grants a [utility] combat talent or a [utility] magic talent, you can use it to gain a base sphere if you apply a drawback or combination of drawbacks that removes all of that base sphere’s benefits other than skill ranks and [utility] talents (and actions necessary to use such talents).
Armed Combatant
The Brute sphere does not grant increased unarmed damage, confer the benefits of Improved Unarmed Strike, or count as a sphere focused on unarmed combat. You do not treat Improved Unarmed Strike as an associated feat, and cannot select this drawback if you gained the Brute sphere instead of gaining Improved Unarmed Strike. In addition, you may not perform a shove without a shield or a weapon. You gain Brace Weapon with this drawback.
Incompatible: Burly.
Burly
You do not gain the shove ability. You must take the Muscular Surge talent with the bonus talent granted by this drawback.
Full Tilt
You do not gain the shove ability. You gain Unstoppable with this drawback.
Incompatible: Armed Combatant, Burly.